Realization of N-Type Semiconducting of Phosphorene through Surface Metal Doping and Work Function Study

Figure 4

(a) The electron loss of a metal atom when binding to phosphorene (a positive value for Au indicates that electron transfers from phosphorene to Au); (b–d) the spatial distributions of the band at Fermi level of phosphorene doped with Na, Cu, and Au, respectively (isosurface = 0.0006 ).

(a)

(b)

(c)

(d)